Dr. Rafael A. Chiquillo Sosa, MD
- Part D claims, 2024
- 220
- Industry payments
- $51
- Affiliated sites
- 1
- Medical group
- 1
- Insurance carriers
- 3
- Practice address
- 901 Nevin Ave, Richmond, CA 94801
- Practice phone
- Call (510) 307-1555
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Richmond Medical Center
Richmond, California
Find Dr. Chiquillo Sosa's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Rafael A. Chiquillo Sosa is a general practice physician in Richmond, California
Dr. Chiquillo Sosa practices at Richmond Medical Center in Richmond, California.
Dr. Chiquillo Sosa's NPI, 1245543065, was assigned on July 21, 2010. Dr. Chiquillo Sosa graduated from Universidad de El Salvador Faculty of Medicine in 2005. Dr. Chiquillo Sosa holds California license A144954.
- NPI
- 1245543065NPI Registry (opens in a new tab)
- Medicare PAC ID
- 5799063095
- NPI enumeration date
- July 21, 2010
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (510) 307-1555
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 47
- Medical school graduation
- 2005
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Rafael A. Chiquillo Sosa practices at Richmond Medical Center in Richmond, California
Dr. Chiquillo Sosa's primary practice is Richmond Medical Center, at 901 Nevin Ave, Richmond, CA 94801 in Contra Costa County. The practice phone is (510) 307-1555.
- Richmond Medical Center901 Nevin Ave, Richmond, CA 94801 · Contra Costa CountyPhone(510) 307-1555
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Rafael A. Chiquillo Sosa is affiliated with 2 sites of care and 1 medical group
Dr. Chiquillo Sosa's primary practice is Richmond Medical Center in Richmond, California. The medical group on file is The Permanente Medical Group, Inc. Dmand AI also links Dr. Chiquillo Sosa to 1 more community health center, named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Rafael A. Chiquillo Sosa's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Chiquillo Sosa practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Richmond Medical Center | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Rafael A. Chiquillo Sosa is one of 1,526 general practice physicians in California
General practice is Dr. Chiquillo Sosa's primary specialty in the NPI Registry, under taxonomy code 208D00000X. Dr. Chiquillo Sosa is board certified in family medicine by the American Board of Family Medicine. Dr. Chiquillo Sosa is licensed in California.
Specialties and state licenses
- General practice, CaliforniaPrimary
Clinical focus
Dmand AI lists drug use disorders among the conditions Dr. Chiquillo Sosa treats.
General practice physicians near Dr. Chiquillo Sosa
Counts of general practice physicians with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Rafael A. Chiquillo Sosa's patients have a median age of 46
Across all payers, Dmand AI patient panel data puts Dr. Chiquillo Sosa's median patient age at 46, with 45% women.
Dr. Chiquillo Sosa's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 46
Patient panel by sex, all payers
- Women45%
- Men53%
Source: Dmand AI Patient Panel Data
Dr. Rafael A. Chiquillo Sosa wrote 220 Medicare Part D claims in 2024
In 2024, Dr. Chiquillo Sosa wrote 220 Medicare Part D claims for 45 patients. 99% of them were for generic drugs. CMS names the drug for 189 of them, across 2 drugs with 11 or more claims each, at $26,618 in total drug cost. In 2023, CMS named 212 claims across 2 drugs.
Dr. Chiquillo Sosa's Part D claims by kind of drug, 2024
- Generic217 claims99%
- Brand-name and other3 claims1%
Dr. Chiquillo Sosa's most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 2122024: 18911%
Drugs named by CMS: 2 in 2024, 2 in 2023.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
How Dr. Rafael A. Chiquillo Sosa takes part in Medicare
Dr. Chiquillo Sosa accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Rafael A. Chiquillo Sosa received $51 in industry payments from 2016 to 2021
CMS Open Payments shows 3 general payments to Dr. Chiquillo Sosa from 3 drug and device companies from 2016 to 2021. Food and beverage make up the largest share, 100% of the total. Merck Sharp & Dohme Corporation paid the most, $19.
General payments to Dr. Chiquillo Sosa by program year, 2016 to 2021
Companies that paid Dr. Chiquillo Sosa the most, 2016 to 2021
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Rafael A. Chiquillo Sosa graduated from Universidad de El Salvador Faculty of Medicine
Dr. Chiquillo Sosa graduated from Universidad de El Salvador Faculty of Medicine in 2005.
- Medical school
- Board certified in family medicine
- Board certified in addiction medicine
Source: Dmand AI Professional Profile Data
Dr. Rafael A. Chiquillo Sosa accepts plans from 3 insurance carriers
Dr. Chiquillo Sosa is in network with 3 carriers, including Elevance, Kaiser Permanente and CMS Medicare. HMO plans come from the most carriers, 2. Check the plan with the practice before a visit.
- Elevance
- Kaiser Permanente
- CMS Medicare
Plan types Dr. Chiquillo Sosa accepts, by number of carriers
- HMO2
- Medicare2
- POS2
- EPO1
Source: Dmand AI Insurance Network Data
Sources for Dr. Rafael A. Chiquillo Sosa's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| Insurance carriers and plan types | Dmand AI Insurance Network Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Rafael A. Chiquillo Sosa
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Rafael A. Chiquillo Sosa's NPI number?
Dr. Rafael A. Chiquillo Sosa's NPI number is 1245543065. It was assigned on July 21, 2010, and it is active in the NPI Registry.
What kind of doctor is Dr. Rafael A. Chiquillo Sosa?
Dr. Rafael A. Chiquillo Sosa is a general practice physician in Richmond, California. The primary specialty in the NPI Registry is General Practice Physician (taxonomy code 208D00000X).
Where does Dr. Rafael A. Chiquillo Sosa practice?
Dr. Chiquillo Sosa practices at 901 Nevin Ave, Richmond, CA 94801. Dr. Chiquillo Sosa's primary practice is Richmond Medical Center in Richmond, California. Dmand AI also links Dr. Chiquillo Sosa to 1 community health center.
What is Dr. Rafael A. Chiquillo Sosa's office phone number?
The practice phone on file for Dr. Chiquillo Sosa is (510) 307-1555.
What is Dr. Rafael A. Chiquillo Sosa's medical license number?
Dr. Chiquillo Sosa holds California license A144954.
What medical group is Dr. Rafael A. Chiquillo Sosa part of?
Dr. Chiquillo Sosa is linked to The Permanente Medical Group, Inc.
Does Dr. Rafael A. Chiquillo Sosa accept Medicare?
Yes. CMS lists Dr. Chiquillo Sosa as accepting Medicare assignment.
Is Dr. Rafael A. Chiquillo Sosa board certified?
Yes. Dr. Chiquillo Sosa is board certified in family medicine by the American Board of Family Medicine.
Where did Dr. Rafael A. Chiquillo Sosa go to medical school?
Dr. Chiquillo Sosa graduated from Universidad de El Salvador Faculty of Medicine in 2005.
What drugs does Dr. Rafael A. Chiquillo Sosa prescribe most?
In 2024 Medicare Part D data, Dr. Chiquillo Sosa's most prescribed drugs by claims were Buprenorphine-Naloxone and Buprenorphine HCl.
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Has Dr. Rafael A. Chiquillo Sosa received payments from drug or device companies?
CMS Open Payments shows $51 in general payments to Dr. Chiquillo Sosa from 3 companies from 2016 to 2021. The largest total came from Merck Sharp & Dohme Corporation.
How long has Dr. Rafael A. Chiquillo Sosa been practicing?
Dr. Chiquillo Sosa graduated from medical school in 2005, 21 years ago.
What insurance does Dr. Rafael A. Chiquillo Sosa accept?
Dr. Chiquillo Sosa is in network with 3 carriers, including Elevance, Kaiser Permanente and CMS Medicare. HMO plans come from the most carriers, 2. Check the plan with the practice before a visit.
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